Statistical characterization of fiber random birefringence

A Galtarossa, L Palmieri, M Schiano, T Tambosso - Optics Letters, 2000 - opg.optica.org
The statistical properties of the random birefringence that affects long single-mode fibers are
experimentally evaluated by means of a polarization-sensitive optical time-domain …

Spatially resolved PMD measurements

A Galtarossa, L Palmieri - Journal of Lightwave Technology, 2004 - opg.optica.org
Spatially resolved measurements of polarization properties of fiber optic link-such as
birefringence, polarization-mode dispersion (PMD) and polarization dependent loss (PDL) …

Determining a polarization-related characteristic of an optical link

N Cyr, H Chen, GW Schinn - US Patent 9,829,429, 2017 - Google Patents
A polarization-related characteristic of an optical path is determined from a predetermined
function of the mean-square of a plurality of differences between polarization-analyzed …

Distributed fiber bend and stress measurement for determining optical fiber reliability by multi-wavelength optical reflectometry

H Chen, X Chen, XS Yao - US Patent 9,829,410, 2017 - Google Patents
The disclosed technology in this patent document includes, among others, methods and
apparatus for distributed measuring at least one of fiber bend or stress related …

Distributed fiber bend and stress measurement for determining optical fiber reliability by multi-wavelength optical reflectometry

H Chen, X Chen, XS Yao - US Patent 9,632,006, 2017 - Google Patents
The disclosed technology in this patent document includes, among others, methods
apparatus for distributed measuring at least one fiber bend or stress related characteristics …

Theoretical analysis of reflectometric measurements in optical fiber links affected by polarization-dependent loss

A Galtarossa, L Palmieri - Journal of lightwave technology, 2003 - opg.optica.org
The theory of reflectometric measurements of polarization-dependent effects in optical fiber
links is generalized to the case of links with polarization-dependent losses. The results are a …

Reflectometric measurements of polarization properties in optical-fiber links

A Galtarossa, L Palmieri - Journal of Optical and Fiber Communications …, 2004 - Springer
Polarization sensitive reflectometric techniques can be effectively used to perform spatially
resolved measurements of polarization properties of fiber optic link—such as birefringence …

Devices and methods for characterization of distributed fiber bend and stress

H Chen, X Chen, XS Yao - US Patent 9,719,883, 2017 - Google Patents
The disclosed technology includes, among others, methods and devices for measuring
distributed fiber bend or stress related characteristics along an optical path of fiber under test …

Method and Apparatus for Determining Differential Group Delay and Polarization Mode Dispersion

N Cyr, H Chen - US Patent App. 12/568,554, 2010 - Google Patents
(57) ABSTRACT A method and apparatus for measuring at least one polarization-related
characteristic of an optical path (FUT) uses an optical source means connected to the FUT at …

Polarized lightwave reflectometry method (POTDR)

P Fayolle, Y Lumineau, G Bouquet, V Durel - US Patent 7,126,678, 2006 - Google Patents
A polarized lightwave reflectometry method including the steps of sending at least two
polarized light signals into the optical fiber to be tested, the signals presenting a determined …